1. Satellite Frequency List - http://www.ne.jp/asahi/hamradio/je9pel/satslist.htm
** DK3WN SatBlog: Status of active Satellites on Amateur Radio Frequencies - https://www.satblog.info/status-2/
2. World Time Zone - https://www.worldtimezone.com/
3. Handbook 100 (The 100th edition of The ARRL Handbook for Radio Communications) - https://home.arrl.org/action/Store/Product-Details/productId/2003373095
4. W6NBC: Two Small Helical Antennas for 2 Meters - https://drive.google.com/file/d/15eXwe0asL0XjQcpkeqyjTDGNd2XZYSLI/view
5. A Cobwebb homebrew antenna - https://lefars.org.uk/WPblog/2013/07/11/a-cobwebb-homebrew-build-by-dave-2e0ddhm0mbd/
** M1GEO VHF-UHF WebSDR- https://www.gb0snb.com/sdr/
